Open access to the research literature : a funders perspective

In a declaration to commemorate the publication of the first draft of the human genome, UK Prime Minister Tony Blair and US President Bill Clinton commented that, “unencumbered access to this information will promote discoveries that will reduce the burden of disease, improve health around the world and enhance the quality of life for all human kind” (quoted in BBC, 2000). One of the major funders of the human genome project was the Wellcome Trust , an independent charity that funds research to improve human and animal health. And, having been at the forefront of the decision to make the genome sequencing data freely available, it was perhaps inevitable that this funding body would lead the way in advocating free access to the research literature. If, as the Wellcome believes, it makes sense for scientists to have free access to raw, genomic data – to help realise the promise of this research – then it makes equal sense for scientists to be able to access the outputs (journal articles), to enable this research to be built on and developed. This chapter considers the issues around open access from the perspective of a research funder

Dissipation and enstrophy statistics in turbulence : are the simulations and mathematics converging?

Since the advent of cluster computing over 10 years ago there has been a steady output of new and better direct numerical simulation of homogeneous, isotropic turbulence with spectra and lower-order statistics converging to experiments and many phenomenological models. The next step is to directly compare these simulations to new models and new mathematics, employing the simulated data sets in novel ways, especially when experimental results do not exist or are poorly converged. For example, many of the higher-order moments predicted by the models converge slowly in experiments. The solution with a simulation is to do what an experiment cannot. The calculation and analysis of Yeung, Donzis & Sreenivasan (J. Fluid Mech., this issue, vol. 700, 2012, pp. 5–15) represents the vanguard of new simulations and new numerical analysis that will fill this gap. Where individual higher-order moments of the vorticity squared (the enstrophy) and kinetic energy dissipation might be converging slowly, they have focused upon ratios between different moments that have better convergence properties. This allows them to more fully explore the statistical distributions that eventually must be modelled. This approach is consistent with recent mathematics that focuses upon temporal intermittency rather than spatial intermittency. The principle is that when the flow is nearly singular, during ‘bad’ phases, when global properties can go up and down by many orders of magnitude, if appropriate ratios are taken, convergence rates should improve. Furthermore, in future analysis it might be possible to use these ratios to gain new insights into the intermittency and regularity properties of the underlying equations

Sphaerodactylus cochranae

Number of Pages: 2Integrative BiologyGeological Science

Ialtris parishi

Number of Pages: 2Integrative BiologyGeological Science